Flow vs Pressure Drop
Water
15-150
10-100
5-50
3"
FLOW, GPM
PRESSURE DR
OP
, PSI
1-1/4"/ 1-1/2"
10-150
10-100
10-75
5-50
3-30
FLOW, GPM
PRESSURE DR
OP
, PSI
1/4"
.10 -1.0
.20-2.0
FLOW, GPM
PRESSURE DR
OP
, PSI
1-15
1-10
FLOW, GPM
PRESSURE DR
OP
, PSI
1/2"
0.5-5.0
3/4" / 1"
5-50
4-40
3-30
2-20
FLOW, GPM
PRESSURE DR
OP
, PSI
0.5-5.0
1-10
0.2-2.0
.05-.50
0.2-2.0
0.1-1.0
0.2-2.0
Figure 20: Water pressure drop charts
Page 31
September 2017
XMT-UM-00498-EN-03